Which of these is true about pre colombian north and south america a. they were united by a single government, b. they were dependent on overseas trade, c. they had complex societies, d. they created a language understood by all groups

indigenous people north and south were displaced, died of disease, and were killed by europeans through slavery, rxpe, and war. in 1491, about 145 million people lived in the western hemisphere. by 1691, the population of indigenous americans had declined by 90-95 percent, or by around 130 million people."

what are the options?

food chain i would say only because there is competition on getting food and survival

this is true many people think today that blacks should be slaves also known as rasisim calling them many insults from slavery the idealogy of the south still exsist in some parts but not all